Weather strip for metal sash



' WnwEssEs.-

J. o. CARLSON 1,755,632

WEATHER STRIP FOR METAL SASH- April 22, 1930.

' Filed May 15, 1929 wzw $511 5.

PatentedApr. 22, 1 930 IFUNITE D STATES PATENT OFFICE JOHN OSCAR GABLSON, OF YOUNGSTOWN, OHIO, ASSIGNOR TO TRUSCON STEEL COMPANY, OF YOUNGSTOWN, OHIO, A CORPORATION OF MICHIGAN WEATHER STRIP FOR METAL SASE Application filed May 15, 1929. Serial No. 863,171.

This invention relates to an improved Weatherstrip particularly adapted for use in connection with metal sash.

The general object of the invention is to provide a Weatherstrip constructed to provide an eflicient, free sliding weatherproof ioint between a sash and a frame, and to prevent rattle and lateral movement of the sash within the frame. a

More particularly it is an object of the invention to provide a novel means of securing a Weatherstrip to a sash so as to insure against loosening or loss of the strip from the sash.

Another particular object of the invention is to provide the present Weatherstrip with a novel rib formation to limit lateral movement of the sash within the frame.

-With the foregoing and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts as Will be hereinafter more fully described, illustrated in the accompanying drawings and defined in the appended claims.

In the drawings, wherein like characters of reference denote corresponding parts in the'difi'erent views: 1

Fig. 1 is a fragmentary front elevation of a metal window construction having the pres ent Weatherstrip embodied therein.

Fig. 2 is a horizontal section on the line 2-2 of Fig, 1.

Fig. 3 is a perspective view of a fragment of one form of Weatherstrip embodying the present improvements.

Fig. 4 is a perspective view of a fragment of another form of Weatherstrip embodying the present improvements; and

Fig. 5 is a detail sectional view showing the manner of mounting the strip of Fig. 5

upon a sash.

Referring to the drawings in detail, A designates, generally, a metal Window frame, and B a metal sash slidable therein. For convenience the frame A and the sash B herein illustrated are of a well known commercial type, but, as will hereinafter become more fully apparent, they may be of any desired specific construction so long as the frame so A is inclusive of a slot 10 to receive a stile of the sash, and the sash is inclusive of a stile 12 slidably disposed within said slot, these being the only essentials, as regards the frame and sash, in so far as the present improvements are concerned.

The present Weatherstrip 14 is formed from an originally flat strip of thin, resili ent metal which is rolled or otherwise shaped to provlde, in cross section, a U-shaped formation 16 extending along one side thereof and a bead 18' extending along the opposite s thereof.

ide

The formation 16 consists of a lip 20 disposed parallel to and overlying an adjacent portlon of the strip 14 in spaced relation thereto, and a web 22 conencting said lip with the body portion 14 of the strip, said U-shaped formation thus being disposed one side of the plane of the body portion other hand is disposed upon the opposite s strip first outwardly, as at 24, and then to of the strip as is manifest. The bead 18 on the ide of the plane of the bod portion of the strip and is formed by ben ing a portion of the wardly as at 26, said inwardly bent portion 26 preferably but not necessarily having its terminal or marginal portion bent upon itself to' rovide a stiffening flange 28.

n accordance with the invention the body portion 14 of the strip, from a line substantially overlying the free edge of the lip to the side thereof provided with the head has a normal fiexure in an outward direction 1 with respect to the lip 20 for a purpose which will presently appear.

bead 18 being disposed in spaced relation to the stile due to the aforesaid normal flexure of the strip, as is manifest.

With the strip 14 mounted on the stile as described, and with the stile 12"disposed within the slot 10 of the frame A as illustrated, i. e. with the rib 18 disposed upon the sash side of the frame wall having the slot 10 and the formation 16 disposed upon the other side of said frame wall, and the flexed portion of'the strip 14 hearing against one edge of the slot 10, it follows that the slot 10 is weather sealed, that the sash is held against rattling, and that lateral movement of the sash is limited by cooperation of the bead 18 with the side wall of the frame at the edge of the slot 10.

It is quite desirable to provide simple, eflicient means to positively retain the strip 14 on the stile 12 and in accordance with the present invention this result may be accomplished either as shown in Figs. 2 and 3 or as shown in Figs. 4 and 5 of the drawings.

As illustrated in Fig. 2, a groove or channel 30 is formed in the face of the stile against which the lip 20 is disposed, and an inturned flange 32 on the free or marginal edge portion of the lip 20 is directed into this groove or channel. On the other hand, as illustrated in Fi 5 of the drawings, a groove or channel 34 is formed in the face of the stile 12 a ainst which the body portion of the strip 14 1s disposed, and the said body portion of the strip has formed therein a rib 36 which is disposed within said groove or channel. Either of these constructions provides an eflicient interlock between the Weatherstrip and the sash stile insurin against loosening or loss of the strip from the stile.

Without further description it is thought that the features and advantages of the invention will be readily apparent to those skilled in the art, and it will of course be understood that changes in the form, proportion and minor details of construction may be resorted to, without departing from the spirit of the invention and scope of the appended claims.

I claim:

1. A Weatherstrip having a U-shaped formation adapted to embrace the outer marginal portion of a sash stile, and an inwardly directed projection on a wall of said U-shaped formation adapted to be received within a recess in the sash stile to interlock the strip with the sash, the said sash stile being continuously straight transversely within the limits of the inner and outer .side edges of the Weatherstrip.

2. A Weatherstrip having a formation to receive and embrace a marginal portion of a sash stile, and an inwardly directed rib on a wall of said formation adapted to be received within a groove in the sash stile to interlock the strip with the sash, the saidsash stile being continuously straight transversely within the limits of the inner and outer side edges of the Weatherstrip.

3. Weatherstrip having a U-shaped formation to receive. and embrace-{a .mar 'nel. portion of a sash stile, said formation; ing inclusive of a lip for engagement with-one side face of the sash stile, and an vinwardly directed marginal flange on said lip adapted to be received within a groovein' the sash stile to interlock the strip with the sash,the said sash stile being.continuously straight transversely within the limits of. theinner and outer side edges of the weatherstri 4. A Weatherstrip havin a U -shaped formation to receiveand emirace a marginal portion of a sash stile, and interlocking formations on said strip and said stile, respectively, preventing edgewise lateral movement of the strip with respect to the stile, thesaid sash stile being continuously strai ht trans- I versely within the limits of the inner and outer side edges of the Weatherstrip.

5. A Weatherstrip havin a U-shaped formation to receive and em race a marginal portion of a sashv stile, one of the side walls of said U-shaped formation having an inwardly directed rojection intermediate its ends adapted to e received within a recess in the adjacent face of the sash stile to interlock the strip with the sash, the said sash stile being continuously straight transversely within the limits of the inner and outer side edges of the Weatherstrip In testimony whereo I hereunto afix my signature.

. JOHN OSCAR CARLSON. 

